Strainer for sinks.



J. F. SULLIVAN. STRAINER FOB. SINKS.

APPLIOATION FILED SEPTA, 190a.

Patented Aug. 3, 1909.

Wih-lmaea I,

UNITED STATES PATENT OFFICE.

JGHN F. SULLIVAN, Ul CARBONDALE, PENNSYLVANIA.

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Specification of Letters Patent.

iatentzed Aug. 3, 1909.

Application filed September 4, 1908. Serial No. 451,668.

To all tell-om it may concern:

lle it known that I, Jonx i SULLIVAN, a eitizen' of the United States, residing at tarhondale. in the eount ot' Laekawanna and State of lenns \'l\'ania. have invented a new and useful Strainer for Sinks, of which the following is a speeitieation.

This invention relates to strainers for sinks. and more partienlarly to means for seem-lug the same in position.

lleretot'ore it has been customary to employ one or more bolts or serews for fastening the strainer in position. Otherwise it has been neeessary to utilize some sperial t'orm ot eoupling between the sink and the pipe extending therefrom.

The objeet of the )reseni invention i: to provide imple and e 'eie-nt means for Se uring a strainer in position. said inein'is being designed to frictional-1y engage vthe drain pipe and being readily adjustable so as to properly engage pipes of ili'tl'erent (l-ianieters.

Witt: tbese'and other objeets in View the invention eonsists of eertain novel details of eonstrnetion and e mbiuations of parts lwreinatter more t'ul| deseribed and point-- ed out in the elainis.

tn the awompanying drawings the priterred form of the invention has been shown.

in said drawings: -l*'ignre.1 is a section through a portion of a sink and drain pipeand through the strainer. therein, said strainer being constructed in aeeordanee with the present invention. Fi 2 is a detail view of the top plate of the strainer.

hi It is a detail view of the tubular hanger used in eonneetion therewith. Fig. et is a perspeetire view of the adjusting sorew. Fig. 5 is a perspiwtive view of the expansible elamping member. Fig. (i is a detail view oil a modified form ot elamping member.

Referring to the figures by 'eharaet ers of ret'erenee A designates a portion of a sink the outlet opening B" ot' whieh is surrounded by a downwardly extending frustoeonieal flange C designed to extend into the flared end (1 of a drain 'iipe D A washer I may if desired e inter osed between the flange C and the flare end 11" of the pipe 1) The plate 1 of the strainer is provided with a number of open ings 2 as ordinarily and this plate is designed to extend warms the opening B.

An opening 3 is formed in the center of the plate and is eountersnnk as indicated at 4. This opening is designed to receive one end of a tubular hanger 5 having an annular shoulder U adjaeent one end and against. which the plate 1 is designed to bear. That end of the hanger I whieh extends through the openings 3 is flared as indicated espeeially in Fig I, said flared portion resting within the eountersink 4. so as to lie substantially flush with the upper fare of the platel.

Extending longitudinally through the hanger 5 is an elongated serew T, the head 8 of which is designed to rest within the flared upper end of the hanger 5. The other end portion of the serew is threaded as indieated at J and extends through a nut 10 having oppositely extending bowed or areuate arms 1 1 integral there\\'ith. The free ends of these arms are enlarged as at 12 and lap, said enlargein ents being formed with registering openiugs 11- through whieh the serew 7 extends. The outer 001' tOtlYtX taees of the arms or jaws 1! are roughened as shown at it. arms or jaws it are pretel'ahly formed of spring metal. \Vhen it is desired to secure the strainer l aeross the opening l3 of a -sink.the screw 7 is inserted through the hanger f and through the openings 13 in the. jaws 1.1. after which said serew is extended through, and in engagement with the nut '10. The normal diameter of the ellipse or eirele formed bythe jaws 11 is less than the internal diameter of the pipe I) lt will be ap 'iarent therefore that by rotating the screw 7 so as to draw the nut. 10 toward the hanger Ii these jaws ll ean he bowed outwardly so that when they are foreed into the pipe D they will frietionally en 'age it". .\t'ter the jaws and the hanger have men insert ed into the flan 'e. l and pipe 11" the serew 7 is rotaied placing a. sereu driver or other tool in engagement with its head 8, and this rotation of the serew will cause the nut 10 to he still further drawn toward the hanger a. This operation will result in the jaws 11 being pressed outwardly so as to firmly engage the wipe D and it will, obviously, be impossl ile to remove the plate 1 from across the opening C unless the screw 7 is unscrewed from engagen'ient with the nut 10 to sneh'an extent as to permit the arms 1t,t.o spring in 'ardly out of engagement with the pipe D it is to be understood of course that the Importance is attached to the fact that the device herein described is of such a construction that it will not retard the flow of water through the )ipe "D to an objectionable extent. I t will also be noted that by utilizing the bendable jaws or arms .11 the device can be readily secured within pipes D of diffcrenl diameters. It will be seen that only one scre w is necessary and it does not require the use of a spider as formerly. The device is very simple, durable and eflicient, and is advantageous because it can be readily placed in position without requiring the servieesof a skilled mechanic.

Although the clamping'member has been described as provided with lap ing ends as shown in Fig. 5, it is to be an erstood that if preferred the up 301 ends of the arms may be formed integral as indicated at 15 and provided w'itlnnn opening for the reception of the screw.

\Vhat is claimed is:

1. A strainer for sinks and the like comprising an a ertured strainer plate having a countersun opening therein, a tubular hanger extending through the opening, one end of said hanger being flared into the countersink, there being an annular collar upon the hanger and constituting a bearing for the plate, and means upon the hanger for securing the plate within a sink.

2. The combination with a strainer plate having a countersunk opening therein; of a tubular hanger extendin into the opening, one end of saidhanger eing flared within the countersink, there being an annular shoulder upon the hanger and constituting a bearing for the plate, and oppositely extending elastic clampingmembers carried by the hanger.

3. The combination with a strainer plate 7 having a countersunk opening therein; of a tubular hanger extending into the opening,

one end of said hanger being flared within the countersink there being an annular shoulder u on the hanger and constituting a bearin or the plate, members 11 on the hanger or securing the plate wit iin the sink, and means extending through the hanger and said members for adjusting the members.

4. The combination with a strainer late and a tubular hanger depending there ruin, of an adjusting screw extending through and beyond one end of the hanger, an interiorly screw-threaded member mounted upon the screw, and oppositely disposed smooth and elastic clamping members extending from the interiorly screw-threaded member, said clam ing members havin hi ping and apertures the screw.

5. The combination with a strainer-plate;

of a tubular hanger enga in and extending from said plate, opposite y owed clamping members hearing at one end against the hanger, and means adj ustably engaging said members and extending through the hanger and en aging the strainer plate, for spreading sai members. 6. The combinatio with a strainerlate and a -tubular han e extending there rom, of oppositely bow clamping member bearing against the hanger and means extending throu h the ends of the clamping members and tfiro h the hanger'and strainer-plate for sprea mg the clamping members, there being an open space between said clamping members.

In testimony that I claim the foregoing as my own, I have hereto aflixed my signature in the presence of two witnesses.

JOHN F. SULLIVAN.

Witnesses:

Jae. MQ-WALKER, C. E. Pnemxmrr.

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